DisplayMode is not callable (or something like this)

[galou]

Not sure about the solution but it seems to solve the error:

diff --git a/freecad/cross/fpo.py b/freecad/cross/fpo.py
index d07f92f..cd384ea 100644
--- a/freecad/cross/fpo.py
+++ b/freecad/cross/fpo.py
@@ -1558,7 +1558,7 @@ def t_view_proxy_get_def_dm(overridden: Any, meta: TypeMeta):
     user = getattr(meta.cls, _DEFAULT_DISPLAY_MODE, None)
     if user:
         def handler(self):
-            return user(self)
+            return user.name
         return handler
 
     if not meta.display_modes:

[mnesarco]

What is the error?
user.name has no sense as default_display_mode must be a method. The intention of the code is to call the user defined method if it is already defined.

Maybe if you show the code and the error i can understand better the issue.

[mnesarco]

I don't know your current code but the expected usage is something like:

@proxy()
class MyComp:

  def default_display_mode(self):
    return ...
    

[galou]

I see now. The error must have been on my side. I found the error on the terminal but I don't have the corresponding code anymore:

Traceback (most recent call last):
  File "/home/gael/.local/share/FreeCAD/Mod/freecad.cross/freecad/cross/fpo.py", line 1561, in handler
    return user(self)
<class 'TypeError'>: 'DisplayMode' object is not callable

I know, it doesn't bring anything more.

I'll close the issue until I'm able to reproduce.